Adhesive material



May l5, 1951 s'. w. BURDINE. 25552,(534

Y ADHESIVE MATERIAL Filed April 24, 1947 INVENTOR ATTORNEY BERTHA W. BURDINE Patented May 15, 1951 UNITED STATES PATENT OFFICE 2,552,664 ADHESIVE MATERIAL Bertha W. Bui-dine, New York, N. Y.

Application April 24, 1947, Serial No. 743,569

2 Claims.

This invention relates to adhesive material of the type which is adapted to be interposed between the surfaces of two articles to adhere them together.

Its principal object is to provide an adhesive material which may be handled conveniently without having the material adhere to the lingers and which may be stacked or rolled without adjacent layers adhering together.

Another object is to provide a three-ply laminated material oi this character which may be easily applied to and removed from some such articles so that it may be reused.

To these ends I provide a web or sheet with a pressure-sensitive tacky adhesive coating on both of its sides and with outer layers of nonadhesive material permanently affixed to the web provided with openings which form the major portion of such sheets, through which the adhesive material is exposed and may be pressed onto opposite desired surfaces,

A still further object is to stagger the openn ings in the outer layers so that the solid parts of each of them will register with the openings in the other.

These and other objects of the invention will appear in the following specication, in which I will describe several embodiments of the invention and point out its novel features in claims.

Referring to the drawings,

Fig. 1 is a plan View of a sheet of material which is made according to and embodies my invention. In this ligure portions of the superimposed layers are shown in different sizes in order to illustrate the construction.

Fig. 2 is an enlarged sectional edge View of a part of the material shown in Fig. 1;

Fig. 3 is a plan View of a modied construction, in which the material is in the form of a strip,

Figs. 4 and 5 show another modification, of which Fig. 4 is a plan view;

Fig. 5 is a section on an enlarged scale, taken on the line 5-5 of Fig. 4; and

Fig. 6 is a perspective view, illustrating one of the many uses to which this material is applicable.

l@ designates a thin web or sheet of paper, cloth or other suitable material, both sides of which are coated with a pressure-sensitive tacky adhesive material Il, such, for example, as that shown in Reissue Patent 19,128, R. G. Drew, August 3, 1934.

2B is an outer layer of paper, holland cloth or similar material, which is `permanently aflixed (Cl. 15d-53.5)

by the adhesive material H to one side of the web Iii. It is provided with a plurality of spaced openings 2|. These, as shown, are of semi-oval shape, with their major axes on inclined lines 22 and in staggered relation to one another. The area of these openings is considerably greater than that of the solid portions of the sheet between them.

is a similar layer of non-adhesive material permanently aixed to the other side of the web iii, with the major axes or' its openings 3| on lines 32, which are inclined in the opposite direction to that of the lines 22. The solid portions 33 of the layer 3Q are alined with the openings 2l in the layer 2U.

It is not necessary for the hands or lingers to Acome into contact with the tacky adhesive matter in handling material of this construction, rlhese laminated sheets may be stacked or superimposed upon one another without adhering together.

When the material is used to adhere two objects together, it may be placed on a surface of one of the objects and adhered to it by exerting pressure on the solid portions of one of the outer layers immediately over the registering openings in the opposite outer layer, thereby causing the adhesive matter throughout the greater area of the laminated sheet of this new material to be pressed into Contact with and be adhered to a desired object so that the material becomes affixed to the object. other object may be placed thereon over the outer layer and be pressed into Contact with the adhesive material exposed by the openings in the outer layer so that this second object becomes adhered to the sheet. Thus, the novel material disclosed herein forms a bond between two objects.

Another method of using the material is to interpose it between two objects and to then press them together. This is especially eiective when at least one of the objects is flexible.

While the material as shown in Figs. 1 and 2 is in the form of laminated sheets of indenite size, it is to be understood that it may be cut up into strips or into pieces of any desired size and shape, in which the advantage is retained of having minor solid portions of the outer layers by which the severed pieces may be handled with facility, and with openings in such outer layers of such size as to expose the major portion of the adhesive material on opposite sides of the laminated sheet to desired objects.

In the form of the material which is illus- Then, an-

trated in Fig. 3, the web IUA is in the form of a narrow strip of indenite length coated on both sides with a pressure-sensitive tacky adhesive. The layer 20A on one side of the web is of the same width as that of the web, and is provided with a series of centrally disposed elongated slots 26A, preferably having rounded ends and separated by narrow solid transverse portions 23A. v

The layer 30A lon the other side of the web is of similar construction and is vprovided with centrally disposed elongated slots 31A separated by narrow solid transverse portions 33A. The outer layers are permanently aiiixed to the web and areV relatively so positioned thereon as Vto bring the solid portions 33A on one .side over the center ci the slots ZIA on vthe 4other side.

The web iiiA and the layer '30A terminate on a common transverse line A-B, andthe otherv layer, 20A, extends, unslotted, beyond this line, as shown at 25. rEhis is for the definite purpose of making this strip material in such a manner that when it is wound onto a spool or reel or linto a roll in the usual manner, with the layer 30A innermost, there will be enough of the un slotted portion 25 of the outer layer 29A to surround and cover the outer convolution of the roll. The layers between each convolution of the roll prevent them from adhering together so that they can be easily unwound.

In the modification shown in Figs. 4 and 5, the web lilB is similar to that shown in Fig. 3, but the layers 26B yand 30B are made of one ieee folded centrally at 26, with their openings ZIB, SIB, preferably staggered. In the form shown, the fold 26 is spaced from one edge of the web and the extended portions are provided with spaced `perforations V27, 2, for the reception of binder rings or posts. When the material .is made in this forro., it may be used to interconnect two sheets or pages ci a book pressed against opposite sides -of the layers 20B, 30B overlapping the web B, and the leaves or pages thus connected may be inserted into a suitable binder. The parts of the layers which project laterally :from the web provide further areas for facile handling of the material.

k Another of the many uses to which material of this construction can be placed is shown in Fig. 6. In this gure, iii designates a shelf, to one edge of which a strip lil of the material of substantially the same width as the thickness of the shelf has been applied. This is accomplished by exerting pressure on the solid portions ci the outer layer ci the strip di, which forces the adhesive through the openings in the inner layeronto the edge ci the shelf. 321s an ornamental edging, which is then placed over the strip ril and caused to adhere to the strip by pressure applied by a gliding movement of the thumb or a finger. This pressure further increases the adhesion between the strip 4i and the edge oi the shelf. Because of the staggered as that herein presented of the principles involved, -but the invention itself is not confined to the present showing.

.EI claim:

1. Adhesive vmaterial of the type which comprises a flexible web with a continuous coating of .pressure-sensitive adhesive material on each of its sides and with outer layers of non-adhesive` material over .said coatings, in whichV both of said outer layers are permanently affixed to the web by said coatings and in which both of the outer layers are constructed with parallel elongated spaced slots disposed in staggered relation with solid portions between the sides and ends .of the slots, with the slots in each of the outer layers traversing the slots in the other cuter layer.

2. Adhesive material of the type which comprises a flexible web in the form or" an elongated strip, with pressure-sensitive adhesive material on both of its sides and with outer `layers of non-adhesive material of substantially the same width .as that voi the web over each side of the web, in which both of the outer layers are permanently amxed to the web andare constructed with centrally disposed elongated spaced slots with solid portions between the ends of the slots, through which slots the major part of the adhesive material is exposed, with the solid portions of each of the outer 'layers in registration with the slots in the other outer layer.

BERTI-IA W. BURDINE.

`RElililRlENCES CITED The following references are ci record in the le of vthis ,'patent: 

1. ADHESIVE MATERIAL OF THE TYPE WHICH COMPRISES A FLEXIBLE WEB WITH A CONTINUOUS COATING OF PRESSURE-SENSITIVE ADHESIVE MATERIAL ON EACH OF ITS SIDES AND WITH OUTER LAYERS OF NON-ADHESIVE MATERIAL OVER SAID COATING, IN WHICH BOTH OF SAID OUTER LAYERS ARE PERMANENTLY AFFIXED TO THE WEB BY SAID COATINGS AND IN WHICH BOTH OF THE OUTER LAYERS ARE CONSTRUCTED WITH PARALLEL ELONGATED SPACED SLOTS DISPOSED IN STAGGERED RELATION WITH SOLID PORTIONS BETWEEN THE SIDES AND ENDS OF THE SLOTS, WITH THE SLOTS IN EACH OF THE 